From want of space, as I have before remarked, Mr. Witt's Calidarium becomes his Lavatorium at the conclusion of the sweating process; and no inconvenience results from this arrangement, because ample time can be spared for the drying up of the moisture before the bath is required for use a second time. But where the requisite extent of space exists, and, as a necessity in a public bath where a succession of bathers enter and depart, a separate apartment should be devoted to the purposes of a Lavatorium. And, as the Lavatorium should adjoin the Calidarium, a few feet of the flue may be introduced into the partition wall between the two, and made to warm the air of the Lavatorium, converting it, in fact, into a Tepidarium. The Tepidarium of the ancient Roman Thermæ was an apartment of an intermediate temperature between the Frigidarium and the Calidarium, and supplied a transition medium between the two extremes; warming and relaxing the body on its way from the Frigidarium to the Calidarium on the one hand, and qualifying the depression of the temperature from the Calidarium to the Frigidarium on the other. Before its escape from the Calidarium, the flue is made to heat the water which is required for rinsing the body after thorough friction with soap. For this purpose a tank holding a few gallons of water (Mr. Witt's tank holds ten gallons) is fixed on a portion of the fine at the upper part of the bath, and a short descending pipe, with a horizontal arm fitted at the end with a rose, distributes a grateful shower of warm water over the bather. Another horizontal arm, with or without a rose, brings the cold water, with which the ablution is completed, into the Lavatorium, and is distributed either as a copious shower or as a descending douche, as the bather may desire. In Mr. Stewart Rolland's bath I was indulged with an alternate douche of hot and cold water, which was wonderfully delicious. The third compartment of the bath (the Frigidarium) may be as large as convenient, but should be abundantly supplied with the means of procuring fresh air, and even a current of air; it is not only a cooling-room, but also a drying-room, for in it the moisture left on the body is thoroughly evaporated, and the skin becomes smooth and satiny. The Frigidarium should be furnished with a couch and a few easy chairs, and as it is intended to be trodden with naked feet, it should have a clean wooden floor or a mat. Moreover, it is here that fresh water may be kept for drinking, or the acidulated drinks, or the sherbet. It is here also that should be found the _Columbarium_, with its pigeon-holes for receiving the mantles, the sheets, the towels, the cummerbunds, the combs, together with any other appurtenances of the bath that may be in use.